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Finding the Fourth Proportional to 246.09, 369.36 and 215.11

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Solution

The fourth proportional to 246.09, 369.36 and 215.11 is: 322.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.09 : 369.36 = 215.11 : x
  2. Step 2: Convert to fraction form
    246.09/369.36 = 215.11/x
  3. Step 3: Cross multiply
    246.09x = 369.36 × 215.11
  4. Step 4: Simplify right side
    246.09x = 79,451.41
  5. Step 5: Solve for x
    x = 79,451.41/246.09
  6. Step 6: Final answer
    x = 322.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.